| Mobile Suit Gundam MSVS | JP | 1999-08 |
Bandai | Commercial |
| MobileWonderGate | JP | 2000-07 |
NTT DoCoMo | Commercial |
| Moero!! Pro Yakyuu Rookies | JP | 2000-03-30 |
Jaleco | Commercial |
| Mogura Tatake | WORLD | |
| Unlicensed |
| Morita Shougi for WonderSwan | JP | 1999-11-02 |
Yuki Enterprise | Commercial |
| Mr. Oha no Ko Bouken - Sai Shuushou Saraba Aishi no Shooting | WORLD | |
| Unlicensed |
| Nazo Ou Pocket | JP | 1999-11-18 |
Kaga Tech | Commercial |
| Neon Genesis Evangelion - Shito Ikusei | JP | 1999-07-22 |
Bandai | Commercial |
| Nice On | JP | 1999-04-08 |
Sammy Studios | Commercial |
| Nigero! | WORLD | |
| Unlicensed |
| Nihon Pro Mahjong Renmei Kounin - Tetsuman | JP | 1999-07-15 |
Kaga Tech | Commercial |
| Nobunaga no Yabou for WonderSwan | JP | 1999-03-11 |
Koei | Commercial |
| Noiz | WORLD | |
| Prototype |
| Okiraku Daisakusen | WORLD | |
| Unlicensed |
| Omiyage o Kaou! | WORLD | |
| Unlicensed |
| One Kiri | WORLD | |
| Unlicensed |
| Ore no Kakeibo | WORLD | |
| Unlicensed |
| Ou-chan no Oekaki Logic | JP | 2000-01 |
Sunsoft | Commercial |
| Oyogu Kamo | WORLD | |
| Prototype |
| PDA Mini for WonderWitch | WORLD | |
| Unlicensed |
| Panzer Battle 3 | WORLD | |
| Unlicensed |
| Pepperas! | WORLD | |
| Prototype |
| Ping Pong Spy | WORLD | |
| Unlicensed |
| Pladel | WORLD | |
| Unlicensed |
| Pocket Fighter | JP | 2000-04-06 |
Bandai | Commercial |
| Potential Taper - Rewoke World 03 | WORLD | |
| Unlicensed |
| Pro Mahjong Kiwame for WonderSwan | JP | 1999-10-07 |
Athena | Commercial |
| Puchipuchi | WORLD | |
| Unlicensed |
| Pudding Maker | WORLD | |
| Unlicensed |
| Puyo Puyo Tsuu | JP | 1999-03-11 |
Sega | Commercial |
| Puzzle Bobble | JP | 1999-07-01 |
Sunsoft | Commercial |
| Radius Theta | WORLD | |
| Unlicensed |
| Rainbow Islands - Putty's Party | JP | 2000-06-29 |
Takara | Commercial |
| ReSiA System | WORLD | |
| Prototype |
| Renda Machine | WORLD | |
| Unlicensed |
| Ring Infinity | JP | 2000-08-10 |
Bandai | Commercial |
| Robot Works | HK | 2000-08-04 |
Bandai | Commercial |
| Robot Works | JP | 2000-08-04 |
Bandai | Commercial |
| Rockman & Forte - Mirai Kara no Chousensha | JP | 1999-10-28 |
Bandai | Commercial |
| SD Gundam - Emotional Jam | JP | 1999-05-27 |
Bandai | Commercial |
| SD Gundam G Generation - Gather Beat | JP | 2000-07-13 |
Bandai | Commercial |
| SD Gundam Gashapon Senki - Episode 1 | JP | 1999-12-29 |
Bandai | Commercial |
| Saint Dagrat Monogatari | WORLD | |
| Unlicensed |
| Sangokushi II for WonderSwan | JP | 2000-04-06 |
Koei | Commercial |
| Sangokushi for WonderSwan | JP | 1999-04-01 |
Koei | Commercial |
| Senbetsu | WORLD | |
| Unlicensed |
| Senkaiden - TV Animation Senkaiden Houshin Engi Yori | JP | 2000-02-24 |
Bandai | Commercial |
| Sennou Millennium | JP | 2000-03-16 |
Bandai | Commercial |
| Shanghai Pocket | JP | 1999-04-01 |
Sunsoft | Commercial |
| Shin Nihon Pro Wrestling - Toukon Retsuden | JP | 1999-03-04 |
Tomy | Commercial |
| Shougi Touryuumon | JP | 1999-10-28 |
Sammy Studios | Commercial |
| Side Pocket for WonderSwan | JP | 1999-11-25 |
Data East | Commercial |
| Slipull | WORLD | |
| Unlicensed |
| Slipull Lite | WORLD | |
| Prototype |
| Slither Link | JP | 2000-04-20 |
Bandai | Commercial |
| Snake for WonderWitch | WORLD | |
| Unlicensed |
| Soccer Yarou! - Challenge the World | JP | 1999-08-12 |
Coconuts Japan | Commercial |
| Sotsugyou for WonderSwan | JP | 1999-12-16 |
Bandai Visual | Commercial |
| Space Invaders | JP | 1999-05-13 |
Sunsoft | Commercial |
| Super Robot Taisen Compact | JP | 1999-04-28 |
Banpresto | Commercial |
| Super Robot Taisen Compact 2 - Dai-1-bu - Chijou Gekidou Hen | JP | 2000-03-30 |
Banpresto | Commercial |
| Super Robot Taisen Compact 2 - Dai-2-bu - Uchuu Gekishin Hen | JP | 2000-09-14 |
Banpresto | Commercial |
| Super Robot Taisen Compact 2 - Dai-3-bu - Ginga Kessen Hen | JP | 2001-01-18 |
Banpresto | Commercial |
| Taikyoku Igo - Heisei Kiin | JP | 2000-02 |
Success | Commercial |
| Taisen Othello Game | WORLD | |
| Unlicensed |
| Taitoru Moji Koudo-hyo | WORLD | |
| Unlicensed |
| Tanjou Debut for WonderSwan | JP | 2000-02-24 |
Bandai Visual | Commercial |
| Tare Panda no GunPey | JP | 1999-12-09 |
Bandai | Commercial |
| Tekken Card Challenge | JP | 1999-06-17 |
Bandai | Commercial |
| Tenori-on | JP | 2000 |
Happy Technology Lab | Commercial |
| Terrors | JP | 1999-05-08 |
Bandai | Commercial |
| Testarossa | WORLD | |
| Unlicensed |
| Tetsujin 28 Gou | JP | 1999-12-22 |
MegaHouse | Commercial |
| Time Bokan Series - Bokan Densetsu - Buta mo Odaterya Doronboo | JP | 2000-04 |
Banpresto | Commercial |
| Tokyo Majin Gakuen - Fuju Houroku | JP | 2000-10-12 |
Asmik | Commercial |
| Trap Trap | WORLD | |
| Unlicensed |
| Triangle | WORLD | |
| Unlicensed |
| Truchet | WORLD | |
| Unlicensed |
| Trump Collection - Bottom-Up Teki Trump Seikatsu | JP | 1999-07-01 |
Bottom Up Interactive | Commercial |
| Trump Collection 2 - Bottom-Up Teki Sekaiisshuu no Tabi | JP | 2000-09-28 |
Bottom Up Interactive | Commercial |
| Tsubo Game | WORLD | |
| Unlicensed |
| Tumble | WORLD | |
| Unlicensed |
| Turntablist - DJ Battle | JP | 1999-11-25 |
Bandai | Commercial |
| Umetatte | WORLD | |
| Unlicensed |
| Umizuri ni Ikou! | JP | 1999-04-01 |
Coconuts Japan | Commercial |
| Uzumaki - Denshi Kaiki Hen | JP | 2000-02-03 |
Omega Micott | Commercial |
| Uzumaki - Noroi Simulation | JP | 2000-03 |
Omega Micott | Commercial |
| V-Attacker | WORLD | |
| Unlicensed |
| Vaitz Blade | JP | 1999-06-24 |
Bandai | Commercial |
| Virus | WORLD | |
| Unlicensed |
| Wago | WORLD | |
| Unlicensed |
| Wasabi Produce - Street Dancer | JP | 2000-04-27 |
Bandai | Commercial |
| Wave Q | WORLD | |
| Unlicensed |
| Wave R | WORLD | |
| Unlicensed |
| With a Dory | WORLD | |
| Prototype |
| Wonder Recorder | WORLD | |
| Unlicensed |
| Wonder Stadium | JP | 1999-03 |
Bandai | Commercial |
| Wonder Stadium '99 | JP | 1999-09 |
Bandai | Commercial |
| Wonder Su-Zi | WORLD | |
| Unlicensed |
| WonderSwan Handy Sonar | JP | 1999-05 |
Bandai | Commercial |